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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series
Packaging Factory | Tube
Battery Chemistry Multi-Chemistry
Number of Cells 2 ~ 4
Current - Charging Constant - Programmable
Programmable Features -
Fault Protection -
Charge Current - Max 4A
Battery Pack Voltage 17.6V (Max)
Voltage - Supply (Max) 28V
Interface -
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 32-WFQFN Exposed Pad
Supplier Device Package 32-TQFN (5x5)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MAX1870AETJ+ is a high-performance, multi-chemistry battery charger designed for demanding applications. It delivers a powerful 4A charge current to battery packs with 2 to 4 cells, supporting a maximum voltage of 17.6V. Engineered to operate reliably from -40°C to 85°C, it is well-suited for industrial, automotive, and outdoor environments. The compact 32-WFQFN Exposed Pad package facilitates efficient heat dissipation, making it a robust choice for high-current charging systems.

  • High-Current Charging: The 4A output significantly reduces charging time for large multi-cell packs.
  • Wide Temperature Operation: Rated for -40°C to 85°C, it is ideal for harsh industrial and automotive environments.
  • Multi-Chemistry Support: Offers flexibility to charge various battery types, including Li-Ion and Li-Polymer.
  • Efficient Thermal Management: The exposed pad package aids in heat dissipation, ensuring stable performance at high currents.

Automotive Accessory Chargers

With a -40°C to 85°C temperature range, it is suitable for charging multi-chemistry battery packs in automotive electronics and telematics systems.

Industrial Power Tools

The 4A charge current and support for up to 4 cells make it ideal for high-capacity battery packs in professional-grade power tools used on job sites.

Outdoor Portable Equipment

For rugged GPS units and field communication devices, the wide temperature range ensures reliable charging in extreme weather conditions.

High-Performance Drones

Multi-chemistry support and high current output are critical for quickly and safely charging the LiPo packs used in commercial drones.

Robotic Systems

In industrial robotics, the charger's robust temperature tolerance and high current capability support the demanding power needs of autonomous mobile robots.

Q: What battery chemistries does the MAX1870AETJ+ support?
A: It is a Multi-Chemistry charger.
Q: How many cells can it charge?
A: It supports 2 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 4A.
Q: What is the maximum battery pack voltage?
A: The maximum battery pack voltage is 17.6V.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C (TA).
Q: What package is available?
A: It is available in a 32-WFQFN Exposed Pad package.
Base Product Number : MAX1870
17.6V 2-4 Cells 32-WFQFN 4A Battery Charger Multi-Chemistry
Q: What battery chemistries does the MAX1870AETJ+ support?
A: It is a Multi-Chemistry charger.
Q: How many cells can it charge?
A: It supports 2 to 4 cells.
Q: What is the maximum charge current?
A: The maximum charge current is 4A.
Q: What is the maximum battery pack voltage?
A: The maximum battery pack voltage is 17.6V.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C (TA).
Q: What package is available?
A: It is available in a 32-WFQFN Exposed Pad package.